Pile-fabric loom



M R. BIRMINGHAM.

PlLE FABRIC LOOM. APPLICATION FILED JULY 19, 1920.

Patented Feb. 21, 1922.

2 SHEETS-SHEET 1.

R. BIRMINGHAM. PILE FABRIC LOOM. APPLlQATlON FILED JULY 19, I920.

Patented Feb. 21, 1922.

2 SHEETS-SHEET 2.

25 1 erly spaced. With the foregoingand other 45 I v Figure 2 illustrates a .pile wire of a type PATIENT OFFICE.

Miche ine. rmminennlvr, or vonxnns ivnw Yoitx.

" rite-F BRIC Loom/r.

.To allwhomitrnay concern; Q 1

Be it known that I, MICHAEL-"R- B1B MINGHAM, a citizen of the 'UnitedfSta'tes, and

resident'of 2412 Riverdale Avenue, Yonkers,-

in the county of West'chester and State of New York, have invented certain new and usefullmprovements in, Pile Fabric Looms, of which the following is a specification. 7

My invention relates to improvements in textile machinery and has-particular application to looms of the type used in connection with the manufacture. of pile fabrics.

An object of my invention ,is-to provide a neat, simple and efficacious attachment or device for holding the pile wires in posr tion before they are securely seized byv the weavevof the fabric itself: Y Another object is to provide adevice by. which the pile wire is positively held in proper edge position during the vdesiredperiod of time and is grasped .by an auxiliary means during its release to facilitate the release a d prevent disturbance of the-position ofthe wire atthattime. v v

A further object is to keep the wires prop objects in view which will become. apparentas the description-proceeds, my; invention resides in thecombination and arrangfiment ofjparts and in the details of-construction, with due regard for mechanicalequivalents, described in the specificationpillustrated in the drawings, and particularly pointed out in the appended claims, it beingunderstood that I do-not-limit myself tothe precise embodiment of the invention hereindis-- closed andchanges can be made within the scope of what is claimed without departing from the spirit ofthe invention; I intend nolimitations other than thoseimposed .on

Y me by the appended claims. c

In the drawings- F 'gure 1 illustrates a portion of a pile fabric loom, showing a device embodying my invention. 1

commonly used. 7 a i .Figure 3illustrates in side elevation one form of attachment embodyingthe, princi ples of my invention, parts being shown in section- 1 i Figure 4 isa plan view of the device il-lu stratedinFigure3. 21 Similar reference {numerals relate; to similar parts 'throughoutthe several views,

In Fig. 1, 10 indicates a pile fabric being I Specification Letters l atent. Application filed July is,

1920- Serial No: 397,174.

manufactured,- ,9 indicating: longitudinalfibres of thafabric and-Sindicatin'g a shuttle I carrying transverse fibre in the well.

- g ...60 of pile wires6 in posi-.

known-manner.

7 indicates aseries tion, woven in the carpet, each wire having a knifeend 5'. As is well known in, the art, it; is essential that thesegknifeledges beheld incorrect cutting position so that.

when the wires are withdrawn the-fibres will begprope'rly severed, the resulting loose ends giving the pile effect to the fabric.

I Incarrying out. my invention I provide a device or attachment for cooperation with the. pile wires. The device is supported on an arm 20 which may be pivoted at 19 toia 1 plate 15 which issecuredto apartofgthe loomc frame 4; ,as by a bolt 3 arranged to pass through a slot 18 in the fixed member.

15. .By meansvof such a .-pivo.ted:jarrange-,

' rat-en ma: 21, 1 922.:

ment, tobe further described; in detail, the

device may, be swung to. one side, as shown in the dotted line position of the device (Fig. 1.), when putting in aheading and taking out wires, for-. example.

so 7 An upturned edge member 317 on the -plate l5- acts .asa guideand stop forth'e member 20. An overlapping guard 16fholds the-pivoted member 2Q from riding over the upturned edge member 17.. At one end of the arm 20 -is a slot .l ithrough which -is passed apivot or bolt 19 for securing the arm to theplatemember l5. The outerend of the member-QO is rounded as at 13 on an v are concentric with the end of the slot.

In the position shown the (Fig: I

4:) motion ofthe pivoted )member 20 with respectto the fixed member 15 except as hereinafteddescribed, is prevented :by the arrangement of. the stop '17, the guard16,

the head of the pivotll9 and the pivot andslotv construction. If the member 20' is pulled out (to the right, as i1lustrated) so that the pivot 19 is in the outer end of the slot 14, the member 20 then may be swung in one direction, the rounded end13 clearing the edge 17 The stop .17 however, ajctingagainst the edge ,of the "member. 20 .pre ventsthe member QObeing swung in. the other direction.

-At the other endof the pivoted armor member 20 is mountedas by bolts 2,2 a support or bracketunember 11. An extension piece 11 is ;shown.,bo1ted as at v1, lyto the pper 11..flhis extension together with a :5

bent end of the support forms a yoke in which a cylinder 30 is mounted. Passing through cylinder 30 is a guide rod 28 carrying a T-shaped head 27. A coiled spring 29 in the cylinder surrounds the guide rod and presses against the head yieldingly holding it in depressed position.

Slidably secured to the T-head 27 is a foot 26, a spring 25 tending to oppose such movement. This foot has a cam surface 24 on the forward lower edge; a wire holding notch 23 or slot at its heel, and 'ashort and steep cam surfaces 35 connecting the notch and cam surface 24..

A finger grip-22 on the head 27 is arranged for manually lifting the head 26 when desired. On the far side of the clamp, as illustrated (Fig. 3) is an auxiliary holding member 21 fixed in position on the support member 11 as by riveting at 31 (Fig. 4).

A bolt 32 threadedinto the head 27 provides for adjustment of the tension of the spring 25 and a nut 33 threaded on the rod 28 provides for adjustment of the tension of the spring 29.

The arm or member 20 at its forward end serves as a track for supporting a plurality of pile wires and has a-recess or opening 34 into which the lower part of the cam face 24 may enter in order to have a part of the foot below the top of the'track on member 20 along which the pile wires ride.

' In operation, a pile wire 6 rides along the track on the member 20 and by reason of the cam edge 24 of the foot, the latteris lifted against the pressure of the spring 29, the wire bridging the opening 34. The foot takes the dotted line position of Fig. 3 when the pile wire reaches theposition 6".

On further backward, movement of the pile wire, the sloping cam face 35 of the foot 26 rides on the pile wire forcing the foot forward (to the right as shown) against the comparatively light tension of the spring 25, the upright face 37 of the notch 23 straightening the wire into edge position.

The pressure ofthe resilient member 29 then forces the foot down and the pile wire enters the holding slot 23, the foot moving backward to normal position. The spring 25 keeps the clamp head in normal position so that the pile wire will enterthe holding slot 23. l

When a second wire is fed into the device, the wire previously in the slot 23 is held from upward movement by an abutment 21. )Vhen the clamp head moves forward and down, a back face 36 of the clamp head comes down in front of the discharged'wire and presses same along (to the left) when the foot itself moves back under the action of spring 25. In this way the clamp head acts to "aid in spacing the -'wires equally along the support "20, while each is held in proper edge "positionby the clamp slot 23 and later in the travel, by the abutment 21.

As the wires travel backward ,with the fabric, they are released from the auxiliary clamp 21 and are free to be pulled out as desired.

As will be apparent to those skilled in the art, the wires are fed into the holding deviceby the action of the loom parts. The reed posts 40, 40 project upward from the crossbar 39 and engage the pile wire to force it forward. lVith my device an auxiliary post 38 is also used to engage the pile wires on the outer side of the clamp thereby preventing strain on' the wire as 'it passes through the clamp. The post 38 comprises, in this embodiment of my invention, an angle iron bolted or otherwise secured to the crossbar 39.

What I claim is:

1. The combination with the pile wires of a pile fabric loom, of a wire supporting track, a foot normally holding the free end of a pile wire in a fixed position on the track, means for elevating the foot to release the held wire, means permitting a forward movement of the whole wire holding part of the foot while the foot is in its elevated position, and resilient means to restore the'foot to its normal position.

2. The combination with the pile wires of a pile fabric loom, of a wire supporting track, a foot mounted for movement toward and from the track, means at the heel of the foot for holding a pile wire in a' definite position 0n the track, an incline from said means to the bottom of the foot, a recess in the track for receiving the lowermost part of the foot, means for elevating the foot to release the held wire'comprising a pile wire movable between the track and bottom of the foot, and means permitting a forward movement of thefoot as the incline rides down on the movable pile wire.

- 3. The combination with the pile wires of a pile fabric loom, of a wire-supporting track, a foot mounted for movement toward and from the track, a'notch at the heel of the foot for holding a pile wire in a definite position on the track, an incline from one side of the inside of the notch to the bottom ofthe foot, an inclined surface on the foot forming a narrow edge at the opposite side of the notch, means for elevating the foot 'to release the held wire comprising a p'ile'wire movable between the track and botto'm' of the foot, and means permitting a forward movement of the foot as the incline rides down on the movable pile wire.

4. The'combination with the pile wires of a pile fabric loom, of a wire-supporting track, 'a foot mounted for movement toward and from the track, means'atthe heel ofthe foot for holding a pile wire in a definite position on the track,'an incline from said meanst-o the "bottom 'of'thefoot, a recess in the track for receiving'the lowermost part of the foot, means for elevating the foot to release the hold wlre comprising a pile" wire movable between the track and bottom'of the bracket secured to the traclnand slidable' connections between the bracket and foot,

" .6. The combination with a pile-wire supporting-track,' of a foot adapted to' coact 15 with the track for holding a pile wire in a definite position, a foot-supporting bracket secured to. the track, a spring between the bracket and foot for urging the foot toward the track, and means permitting the foot to move parallel to: the track. V

7. The combination witha pile wire supporting-track, of a foot adapted to coa'ct with the track for holding a pile wire in a' definite position, a bracket secured to the track, a connection between the bracket and foot permitting movement of the latter toward and away from the track, means in the connection for pressing the foot toward the track, and means permitting the foot to move transversely with respect to said connection.

8. The combination with a pile-wire supporting-track, of a foot adapted to coact with the track for holding a pile wire in a definite position, a bracket secured to the track, a connection between the bracket and foot permitting movement of the latter toward and away from the track, means in the connection for pressing the foot toward the track, and a member overlying the track at one side of the foot and secured to the bracket. 7 v p 9. The invention as in claim 7, and wire straddling means at the bottom of the foot.

10. In combination with a pile-wire supporting-track, of a foot supported in a definite relation thereto and having a notch in the heel of the foot for straddling a pile wire means permitting a longitudinal movement of the foot, a cam surface extending downwardly and rearwardly and terminating short of the notch arranged to be engaged by a pile wire to raise the foot and an inclined surface inclined in the opposite direction to the cam surface joining the notch with the bottom of the cam surface and arranged to slide down over a pile wire ing relative movement 'betweenjthe post {and its up orti g means;

12.* he combinan m wi'th a foot adapted to hold Eli-pile wire in a' fi zred position, of head to which the-foot 'isipivotallya'nd slid-f ably 'secured,;resili'ent means o posinggthe slidingfimovemenfiof .theffoot,a guide' post rising from the hea'd'fmeans '"slida bly'sup porting ithe post," and arfinger hold secured to the footfojr movingthe same against the tension of'the said resilientmeans;

13''. In "anattachment for pile r-fabric looms a fixed framemembeiga member p wotally attached thereto, a support member mounted on said" last named "member, 5 a: :T-- shaped vbracket yieldingly mounted on said support member, 4 a clamp head s lidably mountedonsaid 'b'raclret and slot in head" adapted to engage a pile wire. 5

14. The combinationwiththe pile wires of a pile fabric-loom, of a wire supporting track, a-"foot for holding the free endeof a. pile=wire in a'fiXecl pOSit1011 on the track,

means forrelealsing the held wire comprising a pile wire movable between the track 1 and foot-to elevate the latter, and arr 'abutment in spaced relation to the track for prevent- 7 ing the underlying pile wires from rising as the foot is elevated.

15. The combination with the pile wires of a pile fabric loom, of a wire-supporting track, a foot normally holding the free end of a pile wire in a definite position on the track, means for elevating the foot to release the heldwire, means permitting a forward movement of the foot while in its elevated position, and an abutment in. spaced'relai tion to the track for preventing the underlying pile wires from rising as the foot 1s elevated. 1 5

16. The combination with the pile wires the foot,'means' for elevating the foot to release'the held wire comprising a pile wire movable between the track and bottom of the foot, means permitting a forward movement of the foot as the incline rides down on the movable pile wire, and an abutment in spaced relation to the track for preventas the foot is elevated.

ing the underlying pile wires from rising 17. The combination with the pile wires of the foot, means for elevating the foot to release the held wire comprising a pile wire movable between the track and bottom of the foot, means spacing the released wire from the wire holding means, and an abutment inspaced relation to the trackfor preventing the underlying pile wires from rising as the foot is elevated. v

18. The combination with a pile-wire supporting-track, of a foot adapted to coact with the track for holding a pile wire in a fixed position on the track, a foot-supporting bracket secured to the track, slidable connections between the bracket and foot, and a support to which the device is swingably connected.

19. The combination with a pile-wire supporting-track, of a foot adapted to coact with the track for holding a pile wire in a fixed position on the track, a foot-supporting bracket secured to the track, slidable connections between the bracket and foot, an arm supporting the device and a support on which the arm is swingably mounted.

20. The combination with a pile-wire supporting-track, of a foot adapted to coact with the track for holding a pile Wire in a fixed position on the track, a foot-supportingbracket secured to the track, slidable connections between the bracket and foot, an arm supporting the device, a support on which the arm is swing'ably mounted and means for locking the arm to the support.

21'. The combination with a'pile-wire supe porting-track, of a foot adapted to coact with the track for holding a pile wire in a definite position, a bracket secured tothe track, a connection between the bracket and foot permitting movement of the latter toward and away from the track, means in the connection for pressing the foot toward MICHAEL R. BIRMINGHAM. 

